Double acting deep well pump



March 29, 1932. c, BQQNE 1,851,802

DOUBLE ACTING DEEP WELL PUMP Filed Oct. 6. 1951 4 h?- f I 4 55 u Z5@harledQBoone 2 Z7 I 90' 1 K t M Patented Mn. 29, 1932 UNITED STATESPATENT OFFICE CHARLES G. BOONE, OI TULSA, OKLAHOMA, ASSIGNOR TO MAGIGCIT'Y SPECIALTY M- PANY, OI TULSA, OKLAHOMA, A CORPORATION 01 OKLAHOMADOUBLE ACTI ENG DEEP WELL PUMP Application filed October 8, 1981. SerialNo. 567,268.

This invention relates to double acting pumps and its object is toprovide a pump particularly adapted for use in deep wells which may beoperated by ressure fluid delivereo. from-the surface 0 the well.

A further object is to provide a pump simpler in construction and one inwhich the pump cylinder may be any desirable length or size as desired.

Other objects and advantages will become apparent from the descriptionwhich proceeds.

Referring to the accompanying drawings which are made a art hereof andon which 15 similar reference characters indicate similar parts,

Figure 1 is a sectional view of the pump showlng the motor and pumpingcylinder,

Figure 2, a top plan view of the pump as 20 shown in Figure 1,

Figures 3 and 4 are sections on lines 33 and 4-4 respectively, and

Figure 5 is a bottom plan view with the bottom nipple or connectionremoved.

In the drawings numeral indicates a motor cylinder and 11 a pumpingcylinder. The motor cylinder has a piston 12 and the pumping cylinderhas a piston 13 operating therein, the pistons being connected by a 60common piston rod 14.

Suitable cup washers or other washers may be secured on the piston 12and suitable rings or other sealing means may be applied to the piston13. The pumping cylinder 11 is secured at-its upper end to a plate 15and at its lower end to a cap 16. The cylinder may be secured in anysuitable way to the plate and cap, one preferred way being by welding.On one side the plate 15 is provided with a plurality of ports 17c andon its other side with similar ports 18 which provide outlet passagesfrom the pumping "cylinder as will presently be described. The cap 16 isalso provided with aplurality of ports 19 and 20. Tubes 21 are securedto the cap 16 at one end and to the plate 15 at the other in registrywith ports 19 and 17 and similar tubes 22 are secured to the cap andplate in registry with ports and 18. The cap 16 is also provided with aport 23 which enters the lower end of thepumping cylinder 11 beneath thepiston 13.

A partition 24 divides the. cap 16 to provide chambers 25 and 26. Aplate 27 and a nipple 28 are secured to the lower end of the cup 16 bymeans of screws or bolts 46 and 47. Inlet valves are positioned withinthe chambers 25 and 26 and consist of valve seats 29 which are screwthreaded into the plate 27. These valve seats carry ball valves 30 heldwithin cages 31 and are held on their seats by means of springs 32. Acasing 33 is secured about the tubes and the pumping cylinder and isattached to the cup 16 by welding and is screw threaded about theperiphery of the plate 15. The tubes 22 enter at them upper end into thepumping chamber above the piston 13 through a port 34.

The motor cylinder 10 has its lower end secured into a head 35. Thishead is provided withvalves 36 similar in construction to the valves 30shown at the inlet to the pumping chamber. A casing 37 is threaded abouta portion of the head as shown at -.38. A head 39 is welded or otherwisesecured to the top of the casing 37 The top and the casing rovide achamber 44 about the motor cyhn er 10.

The head 35 is secured to the plate 15 by bolts, holes 48 for thispurpose being shown in Figure 3. Pressure fluid from any suitable sourceis delivered to the motor cylinder through pipes 40 and 42 entering thecylinder above the piston through the port 41 and into the cylinderbelow the piston to a port 43. An outlet pipe is connected to the head39. a

In operation motive fluid is supplied to the cylinder 10 through thepipes 40 and 42. On the down stroke pressure fluid enters through pipe40 and port 41 to the chamber above the piston 12. During the downstroke pipe 42 is open to the exhaust so that fluid below the piston 12may exhaust through this line. Through mechanism not shown, but wellknown in this art pressure fluid is switched to enter through pipe 42and port 43 to the chamber below the piston 12 to operate a returnstroke. At this time fluid above the piston 12 exhausts through the line40.

pumping piston 13 is operated. Upon the down stroke fluid in the chamberbeneath the piston 13 is forced out throu h the port 23 and the tubes 21past the chec valve 36 into the chamber 44, and fluid is drawn in abovethe piston 13 through the check valve 30 and- 'tubes 22 and port 34. Onthe upward or return stroke fluid is drawn through check valve 30 intothe chamber beneath the iston 13 and fluid above the piston 13 is orcedout through the port 34 and past the check valves 36 into chamber 44.When the chamber 44 is filled with fluid, as it will be after a fewstrokes, the fluid then is passed out through pipe 45 to the point towhich it is to be delivered.

0 It will be obvious to those skilled in the art that various changesmay be made in my device without departing from the spirit of theinvention and therefore I do not limit myself to what is shown in thedrawings and described in the specification, but only as indicatcd bythe appended claims.

Having thus fully described my said invention, what I claim as new anddesire to secure by Letters Patent, is:

1. A double acting pump having a motor and a pumping cylinder, a pistonin each cylinder connected by a common operating piston rod, pumpingchambers in the pumping cylinder on opposite sides of the piston in saidcylinder, a plurality of longitudinal passages surrounding said pumpingcylinder,

some of said passages being connected to one of said pumping chambersand the other passages connected to the other pumping chamber to provideinlets and outlets to the said chambers and an outlet chambersurrounding said motor cylinder in communication with said longitudinalpassages, substantially as set forth.

.2. A double acting pump having a motor cylinder and a pumping cylinderwith operating and pumping pistons in their respec tive cylinders, saidpistons being connected by a common piston rod, a head secured to thepumping cylinder, inlet passages through said head, said passages havingcheck valves mounted therein, said pumping cylinder having pumpingchambers ateach side of the piston, longitudinal tubes secured in saidhead to provide fluid connections for conducting fluid into and out ofthe said pumping chambers, said passages communicating with an outletchamber surrounding the motor cylinder, substantially as set forth.

3. A double acting pump of the kind described comprising a motorcylinder and a pumping cylinder positioned in axial alignment with eachother, a casing surrounding the motor cylinder and a separate casingsurrounding the pumping cylinder, check valves between chambers formedby the said casings and the said cylinders, a head secured on saidumping cylinder and the casing surroun 'ng it, tubes secured in saidhead, some of said tubes communicatin with one end of the pum ingchamber an the other tubes with the ot er end of the pumping chamber toprovide fluid inlet and outlet passages to the pumping chambers at eachside of the pumpin piston, and means for supplying motive uid to thesaid motor cylinder for operating the pumping piston, substantially asset forth.

4. A double acting pump comprising a cylinder having a piston movabletherein, means for operating said piston, a head secured on saidcylinder, a casing surrounding said cylinder secured in said head, checkvalves in said head, tubes secured in said head, some of said tubescommunicating with the cylinder at one side of the piston, other tubescommunicating with the cylinder at the other side of the piston, andcheck valves controlling outlets from said tubes, substantially as setforth.

In witness whereof, I have hereunto set my hand at Tulsa, Oklahoma, thisfifteenth day of September, A. D. ninteen hundred and thirty-one.

CHARLES G. BOONE.

